Further Reading
- Hardersen, P.S.; Gaffey, M.J.; Abell, P.A. (May 2005). "Near-IR spectral evidence for the presence of iron-poor orthopyroxenes on the surfaces of six M-type asteroids". Icarus 175 (1): 141–158. Bibcode 2005Icar..175..141H. doi:10.1016/j.icarus.2004.10.017.
- Hardersen, P.S.; Gaffey, M.J.; Abell, P.A. (September 2006). "Near-infrared Reflectance Spectra Of 135 Hertha, 224 Oceana, 516 Amherstia, And 872 Holda". Bulletin of the American Astronomical Society 38: 626. Bibcode 2006DPS....38.7103H.
Read more about this topic: 135 Hertha
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